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C. R. Gelino, S. R. Kulkarni (Caltech)
We have been using the Laser Guide Star Adaptive Optics system on the Keck II telescope to observe L and T dwarfs. We present here the results of this project, including the first observations resolving the Kelu-1 binary system. This system has a separation of about 0.3 arcsec and the companions differ in K magnitude by 0.39 mag. Multi-epoch observations indicate the companion is still heading towards apastron. We will discuss this object as well as our other targets.
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.